mirror of
https://github.com/containers/podman
synced 2024-10-20 17:23:30 +00:00
f3a8e3324f
/dev/stdin should not be treated as "-" to remain compatible with Docker and to have a more consistent and idiomatic interface. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
557 lines
21 KiB
Bash
557 lines
21 KiB
Bash
#!/usr/bin/env bats -*- bats -*-
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#
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# Tests for 'podman cp'
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#
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# ASSUMPTION FOR ALL THESE TESTS: /tmp in the container starts off empty
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#
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load helpers
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@test "podman cp file from host to container" {
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srcdir=$PODMAN_TMPDIR/cp-test-file-host-to-ctr
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mkdir -p $srcdir
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local -a randomcontent=(
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random-0-$(random_string 10)
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random-1-$(random_string 15)
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random-2-$(random_string 20)
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)
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echo "${randomcontent[0]}" > $srcdir/hostfile0
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echo "${randomcontent[1]}" > $srcdir/hostfile1
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echo "${randomcontent[2]}" > $srcdir/hostfile2
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mkdir -p $srcdir/subdir
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echo "${randomcontent[2]}" > $srcdir/subdir/dotfile.
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run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
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run_podman exec cpcontainer mkdir /srv/subdir
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# format is: <id> | <destination arg to cp> | <full dest path> | <test name>
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# where:
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# id is 0-2, one of the random strings/files
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# dest arg is the right-hand argument to 'podman cp' (may be implicit)
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# dest path is the full explicit path we expect to see
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# test name is a short description of what we're testing here
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tests="
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0 | / | /hostfile0 | copy to root
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0 | /anotherbase.txt | /anotherbase.txt | copy to root, new name
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0 | /tmp | /tmp/hostfile0 | copy to /tmp
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1 | /tmp/ | /tmp/hostfile1 | copy to /tmp/
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2 | /tmp/. | /tmp/hostfile2 | copy to /tmp/.
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0 | /tmp/hostfile2 | /tmp/hostfile2 | overwrite previous copy
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0 | /tmp/anotherbase.txt | /tmp/anotherbase.txt | copy to /tmp, new name
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0 | . | /srv/hostfile0 | copy to workdir (rel path), new name
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1 | ./ | /srv/hostfile1 | copy to workdir (rel path), new name
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0 | anotherbase.txt | /srv/anotherbase.txt | copy to workdir (rel path), new name
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0 | subdir | /srv/subdir/hostfile0 | copy to workdir/subdir
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"
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# Copy one of the files into container, exec+cat, confirm the file
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# is there and matches what we expect
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while read id dest dest_fullname description; do
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run_podman cp $srcdir/hostfile$id cpcontainer:$dest
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run_podman exec cpcontainer cat $dest_fullname
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is "$output" "${randomcontent[$id]}" "$description (cp -> ctr:$dest)"
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done < <(parse_table "$tests")
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# Dots are special for dirs not files.
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run_podman cp $srcdir/subdir/dotfile. cpcontainer:/tmp
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run_podman exec cpcontainer cat /tmp/dotfile.
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is "$output" "${randomcontent[2]}" "$description (cp -> ctr:$dest)"
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# Host path does not exist.
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run_podman 125 cp $srcdir/IdoNotExist cpcontainer:/tmp
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is "$output" 'Error: ".*/IdoNotExist" could not be found on the host' \
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"copy nonexistent host path"
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# Container (parent) path does not exist.
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run_podman 125 cp $srcdir/hostfile0 cpcontainer:/IdoNotExist/
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is "$output" 'Error: "/IdoNotExist/" could not be found on container cpcontainer: No such file or directory' \
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"copy into nonexistent path in container"
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run_podman rm -f cpcontainer
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}
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@test "podman cp file from container to host" {
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srcdir=$PODMAN_TMPDIR/cp-test-file-ctr-to-host
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mkdir -p $srcdir
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# Create 3 files with random content in the container.
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local -a randomcontent=(
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random-0-$(random_string 10)
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random-1-$(random_string 15)
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random-2-$(random_string 20)
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)
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run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
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run_podman exec cpcontainer sh -c "echo ${randomcontent[0]} > /tmp/containerfile"
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run_podman exec cpcontainer sh -c "echo ${randomcontent[0]} > /tmp/dotfile."
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run_podman exec cpcontainer sh -c "echo ${randomcontent[1]} > /srv/containerfile1"
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run_podman exec cpcontainer sh -c "mkdir /srv/subdir; echo ${randomcontent[2]} > /srv/subdir/containerfile2"
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# format is: <id> | <source arg to cp> | <destination arg (appended to $srcdir) to cp> | <full dest path (appended to $srcdir)> | <test name>
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tests="
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0 | /tmp/containerfile | | /containerfile | copy to srcdir/
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0 | /tmp/dotfile. | | /dotfile. | copy to srcdir/
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0 | /tmp/containerfile | / | /containerfile | copy to srcdir/
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0 | /tmp/containerfile | /. | /containerfile | copy to srcdir/.
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0 | /tmp/containerfile | /newfile | /newfile | copy to srcdir/newfile
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1 | containerfile1 | / | /containerfile1 | copy from workdir (rel path) to srcdir
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2 | subdir/containerfile2 | / | /containerfile2 | copy from workdir/subdir (rel path) to srcdir
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"
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# Copy one of the files to the host, cat, confirm the file
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# is there and matches what we expect
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while read id src dest dest_fullname description; do
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# dest may be "''" for empty table cells
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if [[ $dest == "''" ]];then
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unset dest
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fi
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run_podman cp cpcontainer:$src "$srcdir$dest"
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run cat $srcdir$dest_fullname
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is "$output" "${randomcontent[$id]}" "$description (cp ctr:$src to \$srcdir$dest)"
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rm $srcdir/$dest_fullname
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done < <(parse_table "$tests")
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run_podman rm -f cpcontainer
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}
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@test "podman cp dir from host to container" {
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dirname=dir-test
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srcdir=$PODMAN_TMPDIR/$dirname
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mkdir -p $srcdir
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local -a randomcontent=(
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random-0-$(random_string 10)
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random-1-$(random_string 15)
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)
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echo "${randomcontent[0]}" > $srcdir/hostfile0
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echo "${randomcontent[1]}" > $srcdir/hostfile1
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# "." and "dir/." will copy the contents, so make sure that a dir ending
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# with dot is treated correctly.
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mkdir -p $srcdir.
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cp $srcdir/* $srcdir./
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run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
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run_podman exec cpcontainer mkdir /srv/subdir
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# format is: <source arg to cp (appended to srcdir)> | <destination arg to cp> | <full dest path> | <test name>
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tests="
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| / | /dir-test | copy to root
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. | / | /dir-test. | copy dotdir to root
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/ | /tmp | /tmp/dir-test | copy to tmp
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/. | /usr/ | /usr/ | copy contents of dir to usr/
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| . | /srv/dir-test | copy to workdir (rel path)
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| subdir/. | /srv/subdir/dir-test | copy to workdir subdir (rel path)
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"
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while read src dest dest_fullname description; do
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# src may be "''" for empty table cells
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if [[ $src == "''" ]];then
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unset src
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fi
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run_podman cp $srcdir$src cpcontainer:$dest
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run_podman exec cpcontainer ls $dest_fullname
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run_podman exec cpcontainer cat $dest_fullname/hostfile0
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is "$output" "${randomcontent[0]}" "$description (cp -> ctr:$dest)"
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run_podman exec cpcontainer cat $dest_fullname/hostfile1
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is "$output" "${randomcontent[1]}" "$description (cp -> ctr:$dest)"
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done < <(parse_table "$tests")
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run_podman rm -f cpcontainer
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}
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@test "podman cp dir from container to host" {
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srcdir=$PODMAN_TMPDIR/dir-test
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mkdir -p $srcdir
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run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
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run_podman exec cpcontainer sh -c 'mkdir /srv/subdir; echo "This first file is on the container" > /srv/subdir/containerfile1'
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run_podman exec cpcontainer sh -c 'echo "This second file is on the container as well" > /srv/subdir/containerfile2'
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# "." and "dir/." will copy the contents, so make sure that a dir ending
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# with dot is treated correctly.
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run_podman exec cpcontainer sh -c 'mkdir /tmp/subdir.; cp /srv/subdir/* /tmp/subdir./'
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run_podman cp cpcontainer:/srv $srcdir
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run cat $srcdir/srv/subdir/containerfile1
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is "$output" "This first file is on the container"
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run cat $srcdir/srv/subdir/containerfile2
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is "$output" "This second file is on the container as well"
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rm -rf $srcdir/srv/subdir
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run_podman cp cpcontainer:/srv/. $srcdir
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run ls $srcdir/subdir
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run cat $srcdir/subdir/containerfile1
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is "$output" "This first file is on the container"
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run cat $srcdir/subdir/containerfile2
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is "$output" "This second file is on the container as well"
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rm -rf $srcdir/subdir
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run_podman cp cpcontainer:/srv/subdir/. $srcdir
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run cat $srcdir/containerfile1
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is "$output" "This first file is on the container"
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run cat $srcdir/containerfile2
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is "$output" "This second file is on the container as well"
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rm -rf $srcdir/subdir
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run_podman cp cpcontainer:/tmp/subdir. $srcdir
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run cat $srcdir/subdir./containerfile1
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is "$output" "This first file is on the container"
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run cat $srcdir/subdir./containerfile2
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is "$output" "This second file is on the container as well"
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rm -rf $srcdir/subdir.
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run_podman rm -f cpcontainer
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}
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@test "podman cp file from host to container volume" {
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srcdir=$PODMAN_TMPDIR/cp-test-volume
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mkdir -p $srcdir
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echo "This file should be in volume2" > $srcdir/hostfile
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volume1=$(random_string 20)
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volume2=$(random_string 20)
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run_podman volume create $volume1
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run_podman volume inspect $volume1 --format "{{.Mountpoint}}"
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volume1_mount="$output"
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run_podman volume create $volume2
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run_podman volume inspect $volume2 --format "{{.Mountpoint}}"
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volume2_mount="$output"
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# Create a container using the volume. Note that copying on not-running
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# containers is allowed, so Podman has to analyze the container paths and
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# check if they are hitting a volume, and eventually resolve to the path on
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# the *host*.
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# This test is extra tricky, as volume2 is mounted into a sub-directory of
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# volume1. Podman must copy the file into volume2 and not volume1.
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run_podman create --name cpcontainer -v $volume1:/tmp/volume -v $volume2:/tmp/volume/sub-volume $IMAGE
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run_podman cp $srcdir/hostfile cpcontainer:/tmp/volume/sub-volume
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run cat $volume2_mount/hostfile
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is "$output" "This file should be in volume2"
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# Volume 1 must be empty.
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run ls $volume1_mount
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is "$output" ""
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run_podman rm -f cpcontainer
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run_podman volume rm $volume1 $volume2
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}
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@test "podman cp file from host to container mount" {
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srcdir=$PODMAN_TMPDIR/cp-test-mount-src
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mountdir=$PODMAN_TMPDIR/cp-test-mount
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mkdir -p $srcdir $mountdir
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echo "This file should be in the mount" > $srcdir/hostfile
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volume=$(random_string 20)
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run_podman volume create $volume
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# Make it a bit more complex and put the mount on a volume.
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run_podman create --name cpcontainer -v $volume:/tmp/volume -v $mountdir:/tmp/volume/mount $IMAGE
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run_podman cp $srcdir/hostfile cpcontainer:/tmp/volume/mount
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run cat $mountdir/hostfile
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is "$output" "This file should be in the mount"
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run_podman rm -f cpcontainer
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run_podman volume rm $volume
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}
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# Create two random-name random-content files in /tmp in the container
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# podman-cp them into the host using '/tmp/*', i.e. asking podman to
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# perform wildcard expansion in the container. We should get both
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# files copied into the host.
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@test "podman cp * - wildcard copy multiple files from container to host" {
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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rand_filename1=$(random_string 20)
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rand_content1=$(random_string 50)
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rand_filename2=$(random_string 20)
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rand_content2=$(random_string 50)
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run_podman run --name cpcontainer $IMAGE sh -c \
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"echo $rand_content1 >/tmp/$rand_filename1;
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echo $rand_content2 >/tmp/$rand_filename2"
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# cp no longer supports wildcarding
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run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir
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run_podman rm cpcontainer
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}
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# Create a file on the host; make a symlink in the container pointing
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# into host-only space. Try to podman-cp that symlink. It should fail.
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@test "podman cp - will not recognize symlink pointing into host space" {
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "this file is on the host" >$srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile /tmp/badlink"
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# This should fail because, from the container's perspective, the symlink
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# points to a nonexistent file
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run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir/
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# FIXME: this might not be the exactly correct error message
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is "$output" 'Error: "/tmp/\*" could not be found on container.*'
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# make sure there are no files in dstdir
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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# Issue #3829 - like the above, but with a level of indirection in the
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# wildcard expansion: create a file on the host; create a symlink in
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# the container named 'file1' pointing to this file; then another symlink
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# in the container pointing to 'file*' (file star). Try to podman-cp
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# this invalid double symlink. It must fail.
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@test "podman cp - will not expand globs in host space (#3829)" {
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "This file is on the host" > $srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile file1;ln -s file\* copyme"
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run_podman 125 cp cpcontainer:copyme $dstdir
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is "$output" 'Error: "copyme*" could not be found on container.*'
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# make sure there are no files in dstdir
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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# Another symlink into host space, this one named '*' (star). cp should fail.
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@test "podman cp - will not expand wildcard" {
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "This file lives on the host" > $srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile /tmp/\*"
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run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir
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is "$output" 'Error: "/tmp/\*" could not be found on container.*'
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# dstdir must be empty
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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# THIS IS EXTREMELY WEIRD. Podman expands symlinks in weird ways.
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@test "podman cp into container: weird symlink expansion" {
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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rand_filename1=$(random_string 20)
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rand_content1=$(random_string 50)
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echo $rand_content1 > $srcdir/$rand_filename1
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rand_filename2=$(random_string 20)
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rand_content2=$(random_string 50)
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echo $rand_content2 > $srcdir/$rand_filename2
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rand_filename3=$(random_string 20)
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rand_content3=$(random_string 50)
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echo $rand_content3 > $srcdir/$rand_filename3
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# Create tmp subdirectories in container, most with an invalid 'x' symlink
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# Keep container running so we can exec into it.
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run_podman run -d --name cpcontainer $IMAGE \
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sh -c "mkdir /tmp/d1;ln -s /tmp/nonesuch1 /tmp/d1/x;
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mkdir /tmp/d2;ln -s /tmp/nonesuch2 /tmp/d2/x;
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mkdir /tmp/d3;
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trap 'exit 0' 15;while :;do sleep 0.5;done"
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# Copy file from host into container, into a file named 'x'
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# Note that the second has a trailing slash, implying a directory.
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# Since that destination directory doesn't exist, the cp will fail
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run_podman cp --pause=false $srcdir/$rand_filename1 cpcontainer:/tmp/d1/x
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is "$output" "" "output from podman cp 1"
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run_podman 125 cp --pause=false $srcdir/$rand_filename2 cpcontainer:/tmp/d2/x/
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is "$output" 'Error: "/tmp/d2/x/" could not be found on container cpcontainer: No such file or directory' "cp will not create nonexistent destination directory"
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run_podman cp --pause=false $srcdir/$rand_filename3 cpcontainer:/tmp/d3/x
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is "$output" "" "output from podman cp 3"
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# Read back.
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# In the first case, podman actually creates the file nonesuch1 (i.e.
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# podman expands 'x -> nonesuch1' and, instead of overwriting x,
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# creates an actual file).
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run_podman exec cpcontainer cat /tmp/nonesuch1
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is "$output" "$rand_content1" "cp creates destination file"
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# cp into nonexistent directory should not mkdir nonesuch2 directory
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run_podman 1 exec cpcontainer test -e /tmp/nonesuch2
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# In the third case, podman (correctly imo) creates a file named 'x'
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run_podman exec cpcontainer cat /tmp/d3/x
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is "$output" "$rand_content3" "cp creates file named x"
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run_podman rm -f cpcontainer
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}
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# rhbz1741718 : file copied into container:/var/lib/foo appears as /foo
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# (docker only, never seems to have affected podman. Make sure it never does).
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@test "podman cp into a subdirectory matching GraphRoot" {
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# Create tempfile with random name and content
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srcdir=$PODMAN_TMPDIR/cp-test-in
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mkdir -p $srcdir
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rand_filename=$(random_string 20)
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rand_content=$(random_string 50)
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echo $rand_content > $srcdir/$rand_filename
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chmod 644 $srcdir/$rand_filename
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# Determine path to podman storage (eg /var/lib/c/s, or $HOME/.local/...)
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|
run_podman info --format '{{.Store.GraphRoot}}'
|
|
graphroot=$output
|
|
|
|
# Create that directory in the container, and sleep (to keep container
|
|
# running, so we can exec into it). The trap/while is so podman-rm will
|
|
# run quickly instead of taking 10 seconds.
|
|
run_podman run -d --name cpcontainer $IMAGE sh -c \
|
|
"mkdir -p $graphroot; trap 'exit 0' 15;while :;do sleep 0.5;done"
|
|
|
|
# Copy from host into container.
|
|
run_podman cp --pause=false $srcdir/$rand_filename cpcontainer:$graphroot/$rand_filename
|
|
|
|
# ls, and confirm it's there.
|
|
run_podman exec cpcontainer ls -l $graphroot/$rand_filename
|
|
is "$output" "-rw-r--r-- .* 1 .* root .* 51 .* $graphroot/$rand_filename" \
|
|
"File is copied into container in the correct (full) path"
|
|
|
|
# Confirm it has the expected content (this is unlikely to ever fail)
|
|
run_podman exec cpcontainer cat $graphroot/$rand_filename
|
|
is "$output" "$rand_content" "Contents of file copied into container"
|
|
|
|
run_podman rm -f cpcontainer
|
|
}
|
|
|
|
|
|
@test "podman cp from stdin to container" {
|
|
# Create tempfile with random name and content
|
|
srcdir=$PODMAN_TMPDIR/cp-test-stdin
|
|
mkdir -p $srcdir
|
|
rand_filename=$(random_string 20)
|
|
rand_content=$(random_string 50)
|
|
echo $rand_content > $srcdir/$rand_filename
|
|
chmod 644 $srcdir/$rand_filename
|
|
|
|
# Now tar it up!
|
|
tar_file=$PODMAN_TMPDIR/archive.tar.gz
|
|
tar -zvcf $tar_file $srcdir
|
|
|
|
run_podman run -d --name cpcontainer $IMAGE sleep infinity
|
|
|
|
# NOTE: podman is supposed to auto-detect the gzip compression and
|
|
# decompress automatically.
|
|
#
|
|
# "-" will evaluate to "/dev/stdin" when used a source.
|
|
run_podman cp - cpcontainer:/tmp < $tar_file
|
|
run_podman exec cpcontainer cat /tmp/$srcdir/$rand_filename
|
|
is "$output" "$rand_content"
|
|
run_podman exec cpcontainer rm -rf /tmp/$srcdir
|
|
|
|
# Now for "/dev/stdin".
|
|
# Note: while this works, the content ends up in Nirvana.
|
|
# Same for Docker.
|
|
run_podman cp /dev/stdin cpcontainer:/tmp < $tar_file
|
|
|
|
# Error checks below ...
|
|
|
|
# Input stream must be a (compressed) tar archive.
|
|
run_podman 125 cp - cpcontainer:/tmp < $srcdir/$rand_filename
|
|
is "$output" "Error: source must be a (compressed) tar archive when copying from stdin"
|
|
|
|
# Destination must be a directory (on an existing file).
|
|
run_podman exec cpcontainer touch /tmp/file.txt
|
|
run_podman 125 cp - cpcontainer:/tmp/file.txt < $tar_file
|
|
is "$output" 'Error: destination must be a directory when copying from stdin'
|
|
|
|
# Destination must be a directory (on an absent path).
|
|
run_podman 125 cp - cpcontainer:/tmp/IdoNotExist < $tar_file
|
|
is "$output" 'Error: destination must be a directory when copying from stdin'
|
|
|
|
run_podman rm -f cpcontainer
|
|
}
|
|
|
|
|
|
@test "podman cp from container to stdout" {
|
|
srcdir=$PODMAN_TMPDIR/cp-test-stdout
|
|
mkdir -p $srcdir
|
|
rand_content=$(random_string 50)
|
|
|
|
run_podman run -d --name cpcontainer $IMAGE sleep infinity
|
|
|
|
run_podman exec cpcontainer sh -c "echo '$rand_content' > /tmp/file.txt"
|
|
run_podman exec cpcontainer touch /tmp/empty.txt
|
|
|
|
# Make sure that only "-" gets special treatment. "/dev/stdout"
|
|
run_podman 125 cp cpcontainer:/tmp/file.txt /dev/stdout
|
|
is "$output" 'Error: invalid destination: "/dev/stdout" must be a directory or a regular file'
|
|
|
|
# Copying from stdout will always compress. So let's copy the previously
|
|
# created file from the container via stdout, untar the archive and make
|
|
# sure the file exists with the expected content.
|
|
#
|
|
# NOTE that we can't use run_podman because that uses the BATS 'run'
|
|
# function which redirects stdout and stderr. Here we need to guarantee
|
|
# that podman's stdout is a pipe, not any other form of redirection.
|
|
|
|
# Copy file.
|
|
$PODMAN cp cpcontainer:/tmp/file.txt - > $srcdir/stdout.tar
|
|
if [ $? -ne 0 ]; then
|
|
die "Command failed: podman cp ... - | cat"
|
|
fi
|
|
|
|
tar xvf $srcdir/stdout.tar -C $srcdir
|
|
run cat $srcdir/file.txt
|
|
is "$output" "$rand_content"
|
|
run 1 ls $srcdir/empty.txt
|
|
rm -f $srcdir/*
|
|
|
|
# Copy directory.
|
|
$PODMAN cp cpcontainer:/tmp - > $srcdir/stdout.tar
|
|
if [ $? -ne 0 ]; then
|
|
die "Command failed: podman cp ... - | cat : $output"
|
|
fi
|
|
|
|
tar xvf $srcdir/stdout.tar -C $srcdir
|
|
run cat $srcdir/tmp/file.txt
|
|
is "$output" "$rand_content"
|
|
run cat $srcdir/tmp/empty.txt
|
|
is "$output" ""
|
|
|
|
run_podman rm -f cpcontainer
|
|
}
|
|
|
|
function teardown() {
|
|
# In case any test fails, clean up the container we left behind
|
|
run_podman rm -f cpcontainer
|
|
basic_teardown
|
|
}
|
|
|
|
# vim: filetype=sh
|